Gang-edger



2 Sheets-Sheet 1. T; J. NEACY.

(No Model.)

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N. PETERS, PnuwiLnhagmphr. washington. D. C.

2 Sheets-Sheet 2 (N0 Model.)

T. J. NEAY.

GANG EDGER.

r, .Mw .w m. 8 n r I 0 .nav .WM v P MJU nu ,u .uw im Q MMM .w f w 4f. i www! il/istmo STaTns PATENT @Triest THOMAS J. NEACY, OF MILVAUKEE, VISCONSIN.

GANG-EDGER.

SPECIFICATIQN forming part of Letters Patent No. 306,944, dated October 21, 1884.

Application filed July 1l. 18:3. (o motlohl all whom it may concern.-

Beit known that I, THOMAS J. N hier, of Milwaukee. in the county of Milwaukee and State of Wisconsin, have invented certain new and useful Tmprovements in Self-Calculating Registers for Gang-Edgers; and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it per.- tains to make and use the same, reference bc ing had to the accompanying,` drawings, andto the letters of reference marked thereon, which form a part of this specification.4

l ing graduated scales the relative positions of the saws, the objects of which are, iirst, to avoid the errors incidentV to the mental calculations necessary with the scales or registers heretofore employed; and, second, a device by means of which the saws may be quickly and accurately set at any desired intervals upon the arbor.

In the accompanying drawings like letters refer to the same parts in the several gnres.-

Figure 1 is a plan view ot' a gang-edger having one fixed and two movable saws with my improved self-calculating register applied thereto. Fig. 2 is an end elevation .ot' the same, showing the front ot' the registering device. Fig. 3 is a detached plan view, on an enenlarged scale, ofthe registering device and saws. Fig. 4 is a longitudinal vertical section ofthe edger and register on the line x m, Fig. l; and Fig. 5 is a detached view, on an enlarged` scale, ofthe device used to holdthe movable saws in position when set.

A A is the frame'of the edger, which has a xed saw, B, and movable saws C and D.

L is the saw-arbor7 provided with counterbalancing-tcathers, which tit into grooves in the eyes of the sleeves a a a, and prevent the saws from turningupon said arbor, and at the same time allow of their lateral adjustment.

E is the driving-pulley. The saw B is provided with a set-bolt passing through its collar a against the arbor L. Each of the movable saws C and D is connected by the shifting-arms b b with the racks F F, which slide in ways parallel to anddirectly beneath the arbor L.

p are small racks supported upon springs s, by which they are caused to engage with the small supplemental teeth on racks F F. and arrest and detain'the saws C andD at any desired point ot'thcir travel. i l

G is a tubular shalt. provided at each end with'the duplicate pinions c c'.

I is a shaft passing through and extend ing beyond the tubular shaft G. and provided at its ends with a pair of duplicate pinions, 0c',- like those upon the shat't G. The pinions c c mesh with the rack F F. The shafts G and I are provided at their front ends with large hand-wheels KK', by means of which the saws C and D may be moved laterally in either direction.

In the gang-edgers heretofore used, the saws are set by guess by means ot' notches cut at intervals in the rims of the hand-wheels by which they are operated, or by pointers traveling with each saw and indicating its movelnents upon a single common scalejust above the saws and at a distance from the operator, in the use ot' all ot' which method and devices verrors and inaccuracies are always liable to occur. vTo meet these dit'liculties, I provide the graduated segmental scale-racks H H', which are pivoted close together at any convenient point directly beneath the shal'ts G and I, so as to mesh with the small pinions c c' on the ends ot' said shat'ts. The scale H is provided with an index, d, fixed to bedplate of the same, and brought to a point close to -its graduated face, so as to rcgisterdirectly and precisely theL movement ofthe saw C with reference to the saw B. A second index, fn, is attached to the scale H near the beginning of Vits graduated face, and brought to a point close tothe graduated face of these-ale H', so asto register directly the exact movement of each of the saws U and D with reference to each other. The pinions c'- c' have conical t'rictional faces, which may be clamped togetherby the handscrew O on the end ofthe shaft I. By means of this device the saws C and D can h'rst be set at any desired distance apart, (indicated by the index n upon the scale HQ) and then IOO i, cease@ both moved together to any desired position u`pon the arbor L, as indicated by the index d upon the scale IAI.

In the machine shown in the drawings, with the fixed saw B at the lel't side, the scales H I-I are Igraduated from right to left, so as to register' directly the distance ofthe saws Gand D l'rom the fixed saw B and their distance from each other. W'hen set with their collars aua in Contact, they will be two inches apart.

Mis a longitudinal gage adapted to be moved laterally upon the frame A, with its perpendicular i'ace in a plane always parallel to that ot' the saws, by means ol" the racks N N and pinions e e, fixed upon the shaft f, which has bearings in the frame A. and is provided at-its front end with the right-angled arm g. The

arm g swings close to the face of the segmental rack 71., and is provided with a spring-catehi, to engage with the notches therein and hold the gage M in place. The intervals between the notches in the rack lt represent one inch or other convenient interval ot' the lateral movement of thegage N, and when the springcatch rests in the tirst notch the face ot' the gage will be tlush with the inner side ot' the saw-tramo. The number and arrangement ot' thesaws may be varied according to the amount and kind ot' work to be done, and in place of the segmental scales H H', I may use straight scales,although the former are preterable,since they can be operated in a smaller space and with simpler bearings.

My improved device operates as follows: The tirst saw, B, is set at any desired distance from the i'rame-t'or instance, six inches therefrom-by means ofthe set-bolt passing th rough its col lar a. The second saw, C, is set at anydesired distance from the saw B-t'or instance, six inches theretroia-by turning the handwheel l till the index d points to the tigure 6 on the scale l-I; and the third saw, D, :is set at the desired distance from the saw C- for instance. eight inches therefromby turning the hand-wheel K till the index a points to the figure S upon its scale II; or the saws C and D may be iirst set at any desired distance lrom each other indicated by the index a upon the scale H', the pinions c c' then clamped together. and the two saws moved at once to any desired posit ion upon the arbor L, indicated by the index d upon the scale H. The tirst saw, I5. may be gagcd to saw any less width on the outside than that included between it and the framefor instance, three inches-by turning the arm g until the catch 't' engages with the third notch in the rack l1., when the front tace of the gage M will bein a plane three inches from said saw. By this ar.

rangement the operator is enabled to set the saw quickly and accurately without mental calculation, as the position oi" each saw with reference to that next to it is registered directly upon its proper scale, which is at all times before him in plain View.

I do not wish to confine myself to the exact means herein described of adjusting the saws and operating the self-calculating scales. The saws may be moved laterally by a system ot' levers, to which my improved registering def vice may be effectually applied, as well as to any convenient and practicable device for sotting the saws.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

l. In a gang-edger, a register composed ol the graduated scales H H. a fixed index, d, indicating thereon the movement ot' the scale II, and an index, a. attached to the r: c't II, and indicating upon the other rack, I-l', the movements ot' said racks relative to each ot her, substantially as and for the purposes set i'orth.

2. In a gang-edger thc combination, with a laterallyszuljustable saw, ot' a shat't provided with pinions c c, and a crank or handwhcel, K, a rack, F, meshing with pinion c, and connected with said saw. a graduated scalerack, II, meshing with said pinion c', and an index, d, indicating the movement of said saw upon the graduated face of said scale-rack, substan tially as and l'orthe purposes set forth.

3. Ina gang-edgcr a register composed ol` the graduated segmental rack II Il. operated by pinions c' c', indexes d, and a, and pinions c' c, substantially as and for the purposes set forth.

Li. The combination, in a gangedgcr, ot` laterally adjustable saws Gand D, shal'ts (I and I', provided with pinions c c and c c', racks F Il, meshing with pinions'c c, and connected with said saws, graduated scale racks I-I H', meshing with pinions c c'. fixed index (l. and index a, attached to one scale and indicating the movement of each upon the other. substan tially as and t'or the purposes set forth.

5. In a gang-edger a register composed ot" the graduated scale-racks H I-I, operated by pinions c' c', indexes (l and n. pinions c c', and the screw O, by which said pinions are clamped and said scale-racks caused to move together, substantially as and l'or the purposes set i'orth.

ln testimony that I claim the i'oregoingas my own I atlix my signature in presence ot' two witnesses.

THOMAS J. NEACY.

Vitnesses:

Unas. L. Goss. WM. N. BENTLEY.

YCO

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